Hey there, this is an atar estimate for my friend.
His school ranking is in the 60's and his ranks in his subjects are as followed
English Standard 1/8
MX1 3/12
MX2 4/8
Chemistry 2/12
Biology 2/13.
Thanks in Advance
They haven't put proving e and pi irrational for a long time. So I'm guessing that might show up this year. (btw what part of the syllabus asks 4u students to prove pi and e irrational)
For mechanics, i think SHM is probably going to be in this year (something like a pendulum question).
We also have 10 min reading time. During that reading time, try finish reading all the unseen texts. Im guessing that should save 5 mins for section 1 for most of the people.